英文關鍵字
asphalt
background
bird
birds
birdseed
bread
city
creature
crowd
day
dove
eat
eating
feather
feed
feeding
flock
fly
food
free
gray
ground
heap
hollow
life
lot
lots
millet
natural
nature
outdoor
peck
pecking
pigeon
pigeons
positive
provender
road
seed
seeds
sidewalk
square
street
switchgrass
tail
town
view
wing
wings